Riverbed Protection Downstream of an Undersized Stilling Basin by Means of Antifer Artificial Blocks

Erosion at either dam or spillway foundations, destabilization in riverbanks, and damage the natural environment located downstream of dams spillways represent crucial elements to be taken into account risk assessment hydraulic structures. One main problems is related scouring that water flow may induce boundary spillways. This issue exacerbated case undersized stilling basins, i.e., when a significant level energy migrates by acting on unprotected riverbed. If scour depths are large enough, structural stability infrastructure will threatened. paper aims illustrate an innovative technical solution suitable protect riverbed just basins means artificial Antifer blocks. These kinds blocks widely used field maritime construction, but literature, there no theoretical formulations for their design within frame river engineering. In order demonstrate efficacy proposed solution, it applied real investigated physical modeling. The basin Liscione Dam (Campobasso, Italy) experienced due high discharges during after extreme rain events. Different protection strategies have been tested assess influence different placement methods packing densities block armor layers. Experimental findings reveal regular placements behave more stable than irregular with similar density.